* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

a {
    text-decoration: none;
    color: #666;
}

img {
    vertical-align: middle;
}

li {
    list-style: none;
}

i {
    font-style: normal;
}

input,
button {
    outline: none;
}


/* 清除浮动 */

.clearfix:after {
    visibility: hidden;
    clear: both;
    display: block;
    content: ".";
    height: 0
}

.clearfix {
    *zoom: 1
}